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Green Pages is more than just a source directory. It is also a forum for readers to express views and exchange experience.

Grid Interactive Inverter Anti-Islanding etc≈ Tim HarlandAn inverter using the frequency drift approach to anti-islanding has to continually try to pull the frequency in the chosen direction, and in doing so it appears to the grid to have either a leading or lagging reactance.

New Automatic Methods in Water Testing≈ Brian Wili and David ThomersonContinuous analysis by segmented flow analysers (SFA) have shown this type of instrumentation to be perhaps the most reliable and cost effective.